JP6036653B2 - Shield connector - Google Patents

Description

  The present invention relates to a shield connector provided with a bracket.

  As this type of shield connector, for example, the one described in Patent Document 1 below is known. The shield connector can be fitted into a mounting hole provided in the case of the device. The shield connector includes a synthetic resin housing and a metal shield shell that covers the housing, and a plurality of lock portions that prevent the shield shell from coming off. These locking parts are cantilevered and extend rearward in the mating direction along the outer peripheral surface of the housing, and the locking projections formed on the extended end portions are displaced in a direction intersecting the outer peripheral surface of the housing. It is possible.

  The shield shell is formed with a cylindrical portion to which a cylindrical shield member (for example, a braided wire) that covers a plurality of electric wires is attached. The shield member is pressure-bonded to the cylinder part by covering the outer periphery of the cylinder part with a shield member and caulking a ring from the outer periphery side. By the way, the above-mentioned lock part is locked from the rear to the rear end opening edge of the cylindrical part, whereby the shield shell is held in a state of being prevented from coming off from the housing. The cylindrical portion is integrally formed by drawing a metal plate as a base material. For this reason, before performing the caulking work, it is necessary to pass the wire drawn backward from the housing in advance through the cylindrical portion.

JP 2010-225370 A

  However, instead of using a cylindrical shield member, instead of using a cylindrical crimping member such as a cylindrical part or a caulking ring, for example, when using a shield member in the form of a sheet and winding it around an electric wire later, a plate shape is used. A method is conceivable in which a bracket having a crimping piece to be prepared is prepared, and after the crimping piece is crimped to the peripheral edge of the shield member, the bracket is assembled to the housing. However, in this method, the conventional lock part cannot be used as it is, so that a new assembling method is required.

  The present invention has been completed based on the above-described circumstances, and an object of the present invention is to allow a bracket having a plate-shaped crimping piece to be assembled to a housing.

The present invention is a shield connector attached to a case of a device, which is made of a resin housing, an electric wire drawn out from the housing, a conductive metal, a shield member that covers and shields the electric wire, and a shield A pair of brackets having a plate-shaped shield member connection portion to be crimped to the peripheral portion of the member and having a case connection portion connected to the case of the device, and the pair of case connection portions are arranged in an opposed state It is arranged on the side of the paired shield member connection portions and is bolted to the case in a superposed state, and the case connection portion has a retaining portion having a hole projecting from the periphery of the case connection portion to the housing side. is formed in a form, the housing, the retaining projection which is inserted through the hole is formed, the pair by inserting through the retaining projection in the hole the bracket Characterized in was configured to be held by the housing.

According to such a configuration, the pair of shield member connection portions are arranged in an opposing state, the pair of case connection portions are arranged in a superposed state, and the pair of case connection portions in a superposed state are bolted to the case. A pair of brackets are fixed to the case. Further, the pair of brackets can be held in the housing by inserting the retaining protrusions of the housing through the holes of the stopper portions of the bracket. In this way, a bracket having a plate-like crimping piece can be assembled to the housing.
Further, since the detachment preventing portion can be disposed near the housing, the holding projection of the housing can be reduced in size.

The following configuration is preferable as an embodiment of the present invention.
A holding projection may be formed on any one of the case connection portions, and the pair of case connection portions may be held in a superposed state by hooking the holding projection on the peripheral edge portion of the other case connection portion.
According to such a configuration, after the pair of brackets are brought close to each other and the pair of case connection portions are superposed, the holding protrusion formed on one case connection portion is hooked on the peripheral portion of the other case connection portion, thereby making a pair of A case connection part can be hold | maintained in a superposition | polymerization state.

One shield member connecting portion may be formed with a mounting projection that protrudes toward the other shield member connecting portion, and the housing may have a mounting hole into which the mounting projection is inserted.
According to such a configuration, the bracket can be more stably assembled to the housing by inserting the mounting protrusion into the mounting hole in addition to the locking portion.

The mounting protrusions may be formed in the pair of shield member connection portions, respectively, and the pair of mounting holes into which the pair of mounting protrusions are inserted may be in communication with each other.
According to such a configuration, the pair of brackets can be more stably assembled to the housing by inserting the pair of mounting protrusions into the pair of mounting holes.

  According to the present invention, a bracket having a plate-like pressure-bonding piece can be assembled to a housing.

Perspective view of wire harness Exploded perspective view of wire harness The perspective view which showed the arrangement state of an electric wire permeate | transmitting the shield member of a wire harness The front view which showed the arrangement state of an electric wire permeate | transmitting the shield member of a wire harness Front view of wire harness The figure which expanded and showed the 1st shield connector in FIG. AA line sectional view in FIG. Front view of first upper bracket BB sectional view in FIG. Front view of the first lower bracket CC sectional view in FIG.

<Embodiment>
An embodiment of the present invention will be described with reference to the drawings of FIGS. The wire harness 10 of this embodiment is a power cable that connects a motor (not shown) and an inverter (not shown). The inverter is directly connected to the motor, and the inverter side terminal block (not shown) attached to the inverter case and the motor side terminal block (not shown) attached to the motor case are arranged at a very close distance. Has been. A first shield connector 20 is provided at one end of the wire harness 10, and a second shield connector 30 is provided at the other end of the wire harness 10. The first shield connector 20 is fitted and connected to the motor side terminal block, and the second shield connector 30 is fitted and connected to the inverter side terminal block.

  As shown in FIG. 3, between the first shield connector 20 and the second shield connector 30, a plurality of (in the illustrated case, six) electric wires 40 are arranged in parallel. The electric wire 40 includes a core wire formed by bundling a plurality of strands made of copper, copper alloy, aluminum, or aluminum alloy, and a coating made of an insulating resin that covers the core wire. Moreover, although the electric wire 40 is a large-diameter electric wire corresponding to a large current application, the electric wire 40 is flexible enough to be bent at approximately 90 °. Since the plurality of electric wires 40 are arranged side by side without being bundled, the plurality of electric wires 40 can be bent together at approximately 90 °.

  Next, the configuration of the second shield connector 30 will be briefly described. As shown in FIG. 2, the second shield connector 30 includes a second housing 31 made of synthetic resin, and a second terminal 32 formed integrally with the second housing 31. A metal plate 90 is attached to the second shield connector 30, and the second shield connector 30 is fixed to the inverter case by bolting the metal plate 90 to the inverter case.

  A second seal ring 81 is attached to the second housing 31, and the second seal ring 81 is connected to the metal plate 90 and the inverter case as the metal plate 90 is bolted to the inverter case. It is clamped between the outer surface and sealed from the inside of the case of the inverter to the inside of the second housing 31.

  A second bracket 70 including a second upper bracket 71 and a second lower bracket 72 is attached to the metal plate 90 by bolt fastening. As shown in FIG. 3, the second bracket 70 has a cylindrical second cylindrical portion 73 through which the plurality of electric wires 40 are inserted all together when the second upper bracket 71 and the second lower bracket 72 are assembled to each other. have. The second bracket 70 is formed by punching a conductive metal plate and bending it.

  A pair of upper and lower second shield member connection portions 74 to which the other end portion 52 of the shield member 50 described later is connected are formed on the pair of opposed side portions constituting the long side of the second cylindrical portion 73. Yes. These second shield member connection portions 74 have a plate shape, and are arranged in an opposed state when the second upper bracket 71 and the second lower bracket 72 are assembled to each other. On the other hand, a pair of plate connecting portions 75 that are fastened together with the metal plate 90 are formed on the pair of opposing side portions that constitute the short side of the second cylindrical portion 73 so as to protrude laterally. Specifically, a through hole is formed in the overlapping portion formed by overlapping a pair of plate connection portions 75, and a bolt 91 of a metal plate 90 is inserted into the through hole and a nut 92 is tightened to tighten the pair of plates. The connecting portion 75 is fastened to the metal plate 90 together.

  Next, the configuration of the first shield connector 20 will be described. As shown in FIG. 2, the first shield connector 20 includes a first housing 21 made of synthetic resin and a first terminal 22 formed integrally with the first housing 21. The first housing 21 can be fitted into a mounting hole (not shown) formed through the case of the motor. A first seal ring 80 is fitted on the outer peripheral surface of the first housing 21. When the first housing 21 is fitted into the mounting hole of the motor case, the first seal ring 80 is sandwiched between the outer peripheral surface of the first housing 21 and the inner peripheral surface of the mounting hole. The interior of the first housing 21 is sealed.

  A first bracket 60 including a first upper bracket 61 and a first lower bracket 62 is assembled to the first housing 21. Similarly to the second bracket 70, the first bracket 60 is a cylindrical first tubular shape through which the plurality of electric wires 40 are inserted in a lump when the first upper bracket 61 and the first lower bracket 62 are assembled to each other. A portion 63 is provided. The first bracket 60 is obtained by punching a conductive metal plate and bending it.

  A pair of upper and lower first shield member connection portions 64 to which one end portion 51 of a shield member 50 to be described later is connected are formed on a pair of opposed side portions constituting the long side of the first cylindrical portion 63. . These first shield member connecting portions 64 have a plate shape, and are arranged in an opposed state when the first upper bracket 61 and the first lower bracket 62 are assembled to each other.

  A pair of case connection portions 65 that are bolted to a case that constitutes the outer surface of the motor are formed on the opposite side portion on the short side that constitutes the first cylindrical portion 63 so as to protrude laterally. The pair of case connecting portions 65 are fastened together with the motor case. The case connecting portion 65 includes a horizontal portion 65A extending in the horizontal direction from the short side of the first cylindrical portion 63, a vertical portion 65B extending in the vertical direction from the side edge of the horizontal portion 65A, and the vertical portion 65B. The fastening portion 65C extends in the horizontal direction again from the tip, and the horizontal portion 65A and the fastening portion 65C protrude in opposite directions with respect to the vertical portion 65B. Further, the horizontal portion 65A and the fastening portion 65C are arranged in parallel to each other, and are also arranged in parallel to the pair of first shield member connection portions 64.

  The overlapping portion formed by overlapping the case connecting portion 65 of the first upper bracket 61 and the case connecting portion 65 of the first lower bracket 62 includes a plurality of holding protrusions 62A formed on the first lower bracket 62 side, A plurality of holding and receiving portions 61A formed on the first upper bracket 61 side. The holding protrusion 62A and the holding receiving portion 61A are divided into a horizontal portion 65A and a fastening portion 65C. In addition, the holding protrusion 62A and the holding receiving portion 61A are formed on both the peripheral edge of the case connecting portion 65 that extends in the drawing direction of the electric wire 40 and the peripheral edge orthogonal to the peripheral edge. Therefore, the pair of case connecting portions 65 are integrally held in a superposed state by folding and holding the holding projection 62A so as to fit into the holding receiving portion 61A.

  Further, an anti-removal part 66 is formed on the peripheral edge of the horizontal part 65 </ b> A of the case connection part 65 of the first upper bracket 61 so as to project to the first housing 21 side. A hole 66 </ b> A is formed through the release preventing portion 66. On the other hand, a retaining protrusion 23 is formed on the outer peripheral surface of the first housing 21 to be inserted through the hole 66 </ b> A of the retaining portion 66.

  As shown in FIG. 2, an upper mounting protrusion 64 </ b> A is formed on the side edge of the first shield member connection portion 64 of the first upper bracket 61. The upper mounting protrusion 64 </ b> A is formed to protrude downward at the center of the long side portion of the first shield member connection portion 64. On the other hand, as shown in FIG. 7, an upper mounting hole 24A into which the upper mounting protrusion 64A is inserted from above is formed on the upper surface of the first housing 21 so as to open upward.

  Similarly, a lower mounting protrusion 64 </ b> B is formed on the side edge of the first shield member connecting portion 64 of the first lower bracket 62. The lower mounting protrusion 64 </ b> B is formed to protrude upward at the center of the long side portion of the first shield member connection portion 64. On the other hand, as shown in FIG. 7, a lower mounting hole 24B into which the lower mounting protrusion 64B is inserted from below is formed on the lower surface of the first housing 21 so as to open downward. The upper mounting hole 24A and the lower mounting hole 24B communicate with each other, and are formed so that the opening diameter gradually increases from the upper mounting hole 24A toward the lower mounting hole 24B. Specifically, the rear surfaces of the inner surfaces of both mounting holes 24A and 24B are from one end at the opening edge of the upper mounting hole 24A (the right end in the drawing in FIG. 7) to one end at the opening edge of the lower mounting hole 24B (the right end in the drawing in FIG. 7). It is made into the inclined surface extended diagonally toward.

  In a state where the upper mounting protrusion 64A is inserted into the upper mounting hole 24A and the lower mounting protrusion 64B is inserted into the lower mounting hole 24B, the first bracket 60 is movable in the vertical direction by a predetermined dimension. Yes. In addition, in a state where the pair of retaining protrusions 23 are respectively inserted into the holes 66A of the pair of retaining portions 66, the pair of retaining protrusions 23 can be moved by a predetermined dimension in the horizontal direction. Therefore, in a state where the first bracket 60 is fixed to the motor case, the first shield connector 20 is allowed to move by a predetermined dimension in the vertical direction and the horizontal direction, but is disengaged from the first bracket 60. There is no such thing.

  Unlike the so-called braided wire, the shield member 50 is a woven fabric in which metal yarns are knitted, unlike a so-called braided wire. That is, in the braided wire, a plurality of metal yarns are crossed in an X shape, whereas in a metal cloth, a plurality of metal yarns are composed of warp and weft yarns, and are crossed in a + shape. Yes. For this reason, in the braided wire, the metal yarn is easily frayed, whereas in the metal cloth, the metal cloth is not frayed. Such a metal cloth is, for example, a fabric having a mesh structure in which metal yarns mainly composed of copper are woven so as to intersect each other in the vertical and horizontal directions. The metal cloth may have a structure in which a flexible film made of a resin material is attached to a metal yarn cloth.

  As shown in FIG. 9, the first shield member connecting portion 64 of the first upper bracket 61 includes a first substrate 64C and a first pressure-bonding piece connected to the first substrate 64C so as to form an acute angle. 64D. The upper mounting protrusion 64A is formed by cutting and raising a part of the first pressure-bonding piece 64D. Further, as shown in FIG. 11, the first shield member connection portion 64 of the first lower bracket 62 is connected to the first substrate portion 64C and the first substrate portion 64C so as to form an acute angle. 1 crimping piece 64D. The lower mounting protrusion 64B is formed by cutting and raising a part of the first crimping piece 64D. The case connection portions 65 of the first bracket 60 are provided on both sides of the first substrate portion 64C.

  As shown in FIG. 2, the second shield member connecting portion 74 includes a second substrate portion 74C and a second crimping piece 74D connected so as to form an acute angle with the second substrate portion 74C. ing. The case connection portions 75 of the second bracket 70 are provided on both sides of the second substrate portion 74C.

  The present embodiment is configured as described above, and its operation will be described subsequently. First, a method for crimping the shield member 50 will be briefly described. When the peripheral edge portion of the shield member 50 is inserted between the first substrate portion 64C and the first crimping piece 64D and crimped by a crimping machine (not shown), the first crimping piece 64D is caulked to shield the shield member 50. It is crimped to the peripheral part. Each of the pair of upper and lower shield member connection portions 64 is crimped, and the first upper bracket 61 is assembled to the first housing 21 from above, and the first lower bracket 62 is assembled to the first housing 21 from below. At this time, each hole 66A of each locking portion 66 of the first upper bracket 61 is inserted into each retaining protrusion 23 of the first housing 21, and the upper mounting protrusion 64A is inserted into the upper mounting hole 24A. The lower mounting protrusion 64B of the bracket 62 is inserted into the lower mounting hole 24B. Thus, the pair of upper and lower case connecting portions 65 are brought into a superposed state, and the first upper bracket 61 and the first lower bracket 62 are integrated by folding each holding projection 62A to each holding receiving portion 61A and hooking it. A bracket 60 is configured. Accordingly, the first cylindrical portion 63 is configured, and the shield member 50 is also configured in a cylindrical shape.

  Next, the first housing 21 is fitted into the mounting hole of the motor, and each case connection portion 65 is bolted to the motor case to fix the first bracket 60 to the motor case. Thus, the shield member 50 is connected to the motor case via the first bracket 60.

  As described above, in the present embodiment, the pair of first shield member connection portions 64 are arranged in an opposing state, the pair of case connection portions 65 are arranged in a superposed state, and the pair of case connection portions 65 in a superposed state are arranged. The first upper bracket 61 and the first lower bracket 62 are fixed to the case by bolting the case. Further, by inserting the retaining protrusion 23 of the first housing 21 through the hole 66A of the locking portion 66 of the first upper bracket 61, the first upper bracket 61 and the first lower bracket 62 are connected to the first housing 21. Can be retained. In this way, the first upper bracket 61 and the first lower bracket 62 having the plate-like crimping piece 64D can be assembled to the first housing 21.

A holding projection 62A is formed on the case connecting portion 65 of the first lower bracket 62, and the pair of case connecting portions 65 are superposed by hooking the holding projection 62A on the peripheral edge of the case connecting portion 65 of the first upper bracket 61. It is good also as a structure hold | maintained.
According to such a configuration, the first upper bracket 61 and the first lower bracket 62 are brought close to each other to superpose the pair of case connection portions 65, and then the holding formed on the case connection portion 65 of the first lower bracket 62. The pair of case connection portions 65 can be held in a superposed state by hooking the protrusion 62 </ b> A on the peripheral edge portion of the case connection portion 65 of the first upper bracket 61.

The detachment preventing portion 66 may be formed in a form that protrudes from the peripheral edge of the case connecting portion 65 to the first housing 21 side.
According to such a configuration, since the detachment preventing portion 66 can be disposed near the first housing 21, the holding projection 62A of the first housing 21 can be reduced in size.

One shield member connecting portion 64 may be provided with a mounting protrusion that protrudes toward the other shield member connecting portion 64, and the first housing 21 may be provided with a mounting hole into which the mounting protrusion is inserted. .
According to such a configuration, the first bracket 60 can be more stably assembled to the first housing 21 by inserting the mounting protrusion into the mounting hole in addition to the detachment preventing portion 66.

The mounting protrusions 64A and 64B are respectively formed in the pair of shield member connection portions 64, and the pair of mounting holes 24A and 24B into which the pair of mounting protrusions 64A and 64B are inserted may be in communication with each other. .
According to such a configuration, the first upper bracket 61 and the first lower bracket 62 are more stably assembled to the first housing 21 by inserting the pair of mounting protrusions 64A and 64B into the pair of mounting holes 24A and 24B. be able to.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) Although the holding projection 62A and the holding receiving portion 61A are used as means for holding the pair of case connection portions 65 in the overlapped state in the above embodiment, according to the present invention, the pair of case connection portions are bolted to each other. The polymerization state may be maintained.

(2) outer Re retaining portion 66 may or may not pair formation may be formed only one.

  (3) Although the mounting protrusions 64A and 64B are formed in the first shield member connection portion 64 in the above embodiment, according to the present invention, the mounting protrusion is formed in a portion different from the first shield member connection portion 64. May be. Further, the mounting protrusions 64A and 64B may not be formed as a pair of upper and lower portions, but only one may be formed.

20 ... 1st shield connector (shield connector)
21 ... 1st housing (housing)
Reference symbol 23: Detachment projection 24A: Upper mounting hole 24B: Lower mounting hole 40 ... Electric wire 50 ... Shield member 61 ... First upper bracket 61A ... Holding receiving portion 62 ... First lower bracket 62A ... Holding projection 64 ... First shield member Connection part 64A ... Upper mounting protrusion 64B ... Lower mounting protrusion 65 ... Case connection part 66 ... Release prevention part 66A ... Hole

Claims (4)

A shield connector attached to the case of the device,
A resin housing;
An electrical wire drawn from this housing;
A shield member made of a conductive metal and shielded by covering the wire;
A pair of brackets having a shield member connection part that forms a plate to be crimped to the peripheral part of the shield member and a case connection part connected to the case of the device;
The pair of case connection portions are arranged on the sides of the pair of shield member connection portions arranged in an opposed state and are bolted to the case in a superposed state, and the case connection portions have holes. A retaining portion is formed in a form protruding from the periphery of the case connecting portion to the housing side, and a retaining protrusion that is inserted through the hole is formed in the housing, and the retaining protrusion penetrates the hole. The shield connector is characterized in that the pair of brackets are held in the housing by being inserted.   A holding projection is formed on any one of the case connection portions, and the pair of case connection portions are held in a superposed state by hooking the holding projection on a peripheral edge portion of the other case connection portion. The shield connector according to claim 1. One of the shield member connecting portions is formed with a mounting projection protruding toward the other shield member connecting portion, and the housing is formed with a mounting hole into which the mounting projection is inserted. The shield connector according to claim 1 or 2 . The said mounting protrusion is each formed in a pair of said shield member connection part, The pair of said mounting hole in which a pair of said mounting protrusion is inserted is mutually connected, The Claim 3 characterized by the above-mentioned. Shield connector.

Images